2651225 has 12 divisors (see below), whose sum is σ = 3311916. Its totient is φ = 2105280.

The previous prime is 2651197. The next prime is 2651237. The reversal of 2651225 is 5221562.

It can be written as a sum of positive squares in 6 ways, for example, as 183184 + 2468041 = 428^2 + 1571^2 .

It is not a de Polignac number, because 2651225 - 2⁸ = 2650969 is a prime.

It is a super-3 number, since 3×2651225³ = 55906333857921046875, which contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2651225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4019 + ... + 4631.

It is an arithmetic number, because the mean of its divisors is an integer number (275993).

2^2651225 is an apocalyptic number.

2651225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2651225 is a deficient number, since it is larger than the sum of its proper divisors (660691).

2651225 is a wasteful number, since it uses less digits than its factorization.

2651225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796 (or 791 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 2651225 is about 1628.2582718967. The cubic root of 2651225 is about 138.4040702079.

Adding to 2651225 its reverse (5221562), we get a palindrome (7872787).

The spelling of 2651225 in words is "two million, six hundred fifty-one thousand, two hundred twenty-five".